Pressure-regulating valve.



E.- V. ANDERSON.

PRESSURE RkGULATING VALVE.

APPLICATION FILED FEB. I, 1911.

Patente Feb. 29,1916,

T E E H A S T E E H S 4 E. 'v. ANDERSON PRESSURE REGULATING VALVE.

APPLIC ATION FILED FEB. I, 19H.

Patented Feb 29 1916.

4 SHEETS-SHEET 2.

E: V. ANDERSON.

PRESSURE REGULATI NG VALVE.

APPLICATION FILED FEB. 1. 1911.

Eat-came"; Feb. 29, 1916.,

4 SHEETSr-SHEET 3.

E. v. ANDERSON.

PRESSURE REGULATING VALVE.

APPLICATION FIL ED FEB. 1,}911.

Patented Feb. 29, 1916.

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EDW'ARB V. .QQNDEHS 31i, 0F MUHESSEN, lENNSYZVAhTIA, ASSIG-NOB OF ONE-HALF TO CHARLES E. GOIQDEN, Cl GRAFTON, PENNSYLVANIA.

EBESSURE-REGULATING- VALVE.

Application filed February 1, 1911.

To all wiz am it may some m Be'it known that I, EDWARD V, Annun- SON, a citizen of the United States, residing at Monessen, in the State of Pennsylvania, have invented certain new and useful improvements in Pressure-Regulating Valves,

the manipulation more certain and ellicient.

These objects and other advantages to hereinafter appear, I obtain by means of the construction and operation hereinafter de",

scribed and shown in several forms in the accompanying drawings, wherein- Figure 1. is a vertical section showing a pressure regulating valve with a spring adjustment. Fig. 2- is vertical section of valve (if-the same general type with a different form of adgustmg means for regw lating the pressure, and 3 is a partial section of the same valve with the addition of an electrically operated quick opening means. Fig. 1 is a vertical section of a douhie seated cushion pressure regulating valve similar to that of Fig. 1 and supplied with electrically operatedmeans for quick open ing in emergency Fig. 5 is a vertical central section of a valve similar to that of 1 with the addition of a pilot valve electrically operated and designed to prevent the closure or necessity of rcadjnsting the reducing means upon changing the line pressure in emergency, when desired.

In the drawings, 1 show a double seated valve designed to maintain a. given fixed pressure on the low pressure-side and havingmeans to balance it and to cushion its movement in either direction. Thus in Fig. 1- the casing 8 has a double .web partition 9, 10 with valve seats therein to receivethe large valve 11 and the small valve 12 mounted upon the same stem 13, extending at 1 1 through the cap 15 of the casing 8. The same stem also extends downwardly and carries a. piston 16 working in a dashpot 17,

for the purpose of counterhalancing the upward pressure on the valve and the ad ust- ,ing spring and preventing suddenmove- Specification of Letters Patent.

Patented Feb. 29, 1916.

Serial No. 606,057.

ments or water hammer. On the upper side the stem 13 also carries apiston'18 which operates in the chamber D having ports 20 opening to the low pressure or outlet side of the valve casing and also having a port 21 provided with a ball check 22. It will be plain that this construction allows the valve to open quickly but insures its closing gradually, the ports QOand 21 being closed to the space under piston 18 so that the escapemeht from beneath it is by leakage around the piston; meantime piston 16 reoperate with the differential valves 11 and.

12 and piston 16 to automatically maintain on the low pressure side at the left ofdthe casing 33, a predetermined degree .o flpressure. The valves 11 and 12 may be-the samesize, as the opening is provided forby spring 24. I

In the construction shown in Figs. 2 and 3 the pressure regulation is governed by an auxiliary valve. A passage 28 from the low pressure side of the casing 8, leads to a' chamber 29 which in turn opens byway of port 30 and ports 31 and 28 to the low pressure side of thevalve casing. The port 30 however, is. governed by a stop valve on the stem 32, which is normally held down and open by the contact-of its stem with the. diaphragm 33, under regulable pressure of the spring'iA in the adjustable casing 35; lVhen, however, the pressure rises too high at the; point (L) in the main valve casing, this pressure acting upon the diaphragm 38 com presses the spring 34 and allows the small valve 32 .to close, whereuponthe nowbala'nced pressure on the dashpot disk 18 will llow gradual closing of the main valve, on'

account of the excess-area of valve disk'11 until the low pressure side is again reduced to the normal and-thepilot valve 32-isagain opened to allow escape by way of the passage 28.

In Fig. 3 I have shown, added to'the de vice of Fig. 2, an electrically operated means for accomplishing the function of permitting escape of pressure in the chamber (D above the dash pot 18, thereby maintaining 119 a main Yahie Harm is in this. (1-:

allowefi. to op l imu avar sure on 11 I X will (3 sure TQQUhiOF in F '1, and the normal from tho shfimhor to the Mn'zosyhere by a pipe 36' as: 31 wherez.

in the p on .msnt to 111 a Vii 2Y9, ii

H has been 9 the yulvo 10v: pr. 111 such (was 1111's pr would fin":

smnomseg ime; 1 a in surooaom. the pun 1 11 W11 be requuwb 0 x11. SYQI'J. W :gh the may the electi muil 'ssm'e risas valve bring it will be on Ciifjiilt sure 30W in; VI. v

. Fig. shfiifisfififiiihfii form of this :aleirisally opera" is mine for com'aiemcti11g m 7 Wing device'on film-m; in van: In 1115 c ol, 1' have shmvn the' main who inning a spring presaction ()fthzzo iflingzthelfimrin valve 11., 12

when the 'pl'ossure too high on'the out valve. 1s once op mr'ier t ressui'a in' cor'e 43 thereof presse down upon a lever ).1 I

I gard to noted'fihni; I provi -e vent Water 11 pimzneri 7 oggsn until thtrigmod. Boih the pis- I 1d that in chamber lie movements of the main n lermio means to more quickly and l men and keep open the main mien is @eoired to use the fufliine an oztoeax'galley and wifimufi .1 cap of the valve cas- '26; pilot and auxiliary *vhiohl mount sliding ..t,m has it ts lower end a norma' y closing chamber con y passage 51. is} the l-iigh pressure of the main 'aive casing 8. The valve is lack to by this pressure andalso 1 1 spring Tho sigem 49 is holflu top communicates by a port the. lower 5%: with a "1e 3 mosphore, whileat 1%, commzmmnkes by passages ing the small fling valve 56 by means of a atmcsph Tic pressum in both move- Above this needle alve Lergizing the coil and this has the iTSt of dosing po'rfi 53 11116. afterward of pushing own the hollow stem 49 against open one pilot valve 50. mom-s the high pressure from the cab? en ists from the passage sses: down through the pipe to side of tho ciisk 1 :3 of the clashpot, "131g up main valve Without rethe 12nd ifihus ho:

the. pressure regulating valve to beinterrupteii that file iuli'presure of the 11:19

m be employed in case of fire and'the like,

god mum: gig-adjusting; the pross ui'j regulanggg means; The. pilot valve ltself is formS of. 331%, ii; will be balancofi valve 'xyhlch may be 'acmu-ately'set to regulate the presfsme onjthc low pressuresidei imi which in y off: motions is "521133, cushioned. to pm- It may be opened quicidy; but o 159. 3 'giowly. Also, 1 hzfv set foi th moans fol more' deligcat regulation of'the prassufo irecfiy entzployin go .I'e-

' ha f: provided megiisfor loading to the daisnpot chamber (1)) L very hgh? spun 216 so thzltthe chamber D v him presszire in fihe main Valvecas; 111 (3.711s enables ah-.7 normal opomlon'of gel which nor-- of Valve -15. Of occurred, valve.

m operation of theieg- 13.

ulating valve so that it can mterfere with the use of full pressure in the mains, when occasion requires. 'Also, I have provided an electrically operated means to allow the valve to open under any pressure and to insure its remaining open. And finally, I have added to this a device by which the main valve is allowed to open quickly and absolutely by the direct action of the high pressure-side, as in cases of emergency and this controlled by electrical means at any distance away and instantaneously, not depending upon any handlingof the valve it-;

self. This feature of controlling the valve,

and especially of interrupting the normal operation of a pressure regulating valve .from a distance and by electrical means, I re ard as very important.

aving thus described my invention, and illustrated its use, what I claim as new is the following: f

1. A pressure regulating valve comprising a casing, a valve therein, the valve stem car- 7 rying the piston of a dashpot, connections to balance the valve and dashpot under line pressure in an open condition, including a connection to the line pressure adapted to depress the piston and close the valveupon raising the line pressure, and a check valve in said dashpotwhereby to allow the piston ,to rise more freely than it falls by entrapping fluid in falling, substantially as described.

2. A fluid pressure regulator comprising a valve casing having a valve seat and two cylinders formed therein, a reducing valve cooperating with said seat and having a stem, two ing in said cylinders to cushion the opening and closing movements of the valve, and means cooperating with one of-said pistons to'confine its cushioning effect to the closing movement of the valve.

3. A. pressure regulating valve comprising .a main valve having two seats of different size, a dashpct including a piston on the valve stemand provided with a check valve therein, means to regulate the throttling an electrically operated pilot valve to introduce pressure from the high pressure side under said piston, substantially as described.

In testimony whereof I have hereunto signed my name in the presence of the two subscribed witnesses.

EDWARD V. ANDERSON.

Witnesses:

FnnnK. S'rou'r, CnAs. S. Lerner.

istons mounted on said stem and work- 

